Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

89°F

32°C

Humidity	74%
Wind Speed	Calm
Barometer	30.03 in
Dewpoint	80°F (27°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	1 Jul 12:15 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Perryville MD

Extreme Heat Watch July 2, 11:00am until July 3, 08:00pm

Heat Advisory until July 1, 08:00pm

Click here for hazard details and duration

Extreme Heat Watch

Heat Advisory

Heat Advisory until July 1, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
This Afternoon
High: 91 °F
Sunny
Tonight
Low: 81 °F
Isolated
T-storms then
Mostly Clear
Thursday
High: 96 °F
Sunny
Thursday Night
Low: 83 °F
Clear
Friday
High: 99 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 82 °F
Partly Cloudy
Independence Day
High: 94 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 76 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Sunny, with a high near 91. South wind 8 to 10 mph.

Tonight

Isolated showers and thunderstorms before 9pm. Mostly clear, with a low around 81. South wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

Thursday

Sunny, with a high near 96. Heat index values as high as 105. Southwest wind 5 to 8 mph.

Thursday Night

Clear, with a low around 83. Southwest wind 5 to 9 mph becoming light west after midnight.

Friday

A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 99. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 82.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 40%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.

Sunday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Monday

A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.